Stranding and ban d-twisting machine



(No Model.) I A Y 3 Sheets-Sheet 1.

' W. H. NAYLOR.

STRANDING AND BAND TWISTING MACHINE.

Patented May 5, 1891.

(No Model.) I 3 Sheets-Sheet 2.

W. H. NAYLOR.

STRANDING AND BAND TWISTING MACHINE. No. 451,569. Patented May 5,1891.

mi Nonms ravens cg, Pnurau'mm, wwuun'mn o c 3 R 0 L Y A N H W STRANDING AND BAND TWISTING MACHINE.

Patented May 5,1891.

O m M wp LN wi irwssas 76 77Z00nZvL Waylor UNITED STATES PATENT OFFICE.

IVILLIAM H. N AYLOR, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE NAYLOR MANUFACTURING COMPANY, OF CAMDEN, NEV JERSEY.

STRANDING AND BAND-TWHSTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 451,569, dated May 5, 1891.

Application filed May 6, 1890- Serial No. 350,772. (No model.)

T at whom it may concern.-

Be it known that 1, WILLIAM H. NAYLOR, a sub ect of the Queen of Great Britain and Ireland, residing at Philadelphia, Pennsyl- Vania, have invented certain Improvements in Stranding and Band-Twisting Machines,-

of which the following is a specification.

My invention relates to certain improvements in the band-twisting machine for which Letters Patent were granted me on the 4th of March, 1890, No. 422,611.

My present invention relates to mechanism for stranding the yarn and to details in the construction of the machine.

In the accompanying drawings, Figure 1 is a longitudinal sectional view of my improved band-twisting machine. Fig. 2 is a plan view thereof. Fig. 3 is an enlarged end view thereof, partly sectional. Figs. 4:, 5, and 6 are views of details of the invention, and Fig. 7 is a diagram showing the manner in which the yarn is stranded.

The general construction of the machine in regard to the twisting mechanism is of the 2 5 general plan shown and described in the above-mentioned patent and need not be fully described.

A is the bed of the machine, composed of two longitudinal bars and the end-supportin g 0 frames or legs. D B is a longitudinal shaft having its bearings in said legs, and is driven from the driving-shaft O, which is provided with fast and loose pulleys c c.

5 On the shaft is a sleeve 0', having bevel gear-wheels d d, adapted to mesh alternately with a bevel gear-wheel b on the shaft 13, the bevel gear-wheel d meshing with the wheel I) when the strand is on the two hooks described 40 hereinafter, and thebevel gear-wheel d meshes with the wheel I) when'the strand has been removed from the two hooks and placed on the single hook, described hereinafter.

On the sleeve 0 is a worm d meshing with a worm-wheel D, which is mounted on the shaft D, (shown by dotted lines in Fig. 2,) having its bearings in the frame of the machine similar to that shown in the above-described patent. On this shaft D is a cam D,

(see Fig. 3,) having in the present instance pins 6 e, which act on levers, described hereinafter, for operating different parts of the machine; but the pins may in some instances project directly from the shaft without departing from my invention. The sleeve is moved on the shaft by a handle E, having a spring-actuated lever E, provided with a pin 6 at its lower end adapted to pass in one of the series of orifices-in a plate E so that by moving the sleeve longitudinally through the medium of the handle either one or the other of the bevel-wheels will be thrown into gear with the bevel-wheel b.

On the shaft Bis a gear-wheel B, meshing with pinions ff on spindles F F, carrying at their inner ends the hooks it h, on which the strands to be twisted are placed.

On the shaft B is a friction-wheel B and mounted on a pivoted arm G is a shaft G, carrying a friction-pinion g and a hook g at its inner end. Thearm G is pivoted at g to the frame, and has an extension or arm (5} bent as shown in Fig.3 and weighted. Engaging With this arm is a catch-lever H, pivoted at 77. to the frame of the machine. This catch-lever is weighted at its outer end. The arm G is released from the control of the catch-lever by the pin 6' striking against a projection on the catch-lever and depressing it, so that the arm will be free from the catch and the weight will move the friction-pinion g into engagement with the friction-wheel B The pinion is thrown out of engagement with the friction wheel by hand, the operator grasping the shaft or spindle G.

Sliding on the frame of the machine is a carriage I, carrying the spindle J, having a hook j at its inner end. This hook receives the single end of the strand of yarn to be twisted. A pinion 7" on this spindle J meshes go with a gear-wheel 7c, loose on the shaft I5, but adapted to slide with the carriage I, being connected to it through the medium of a sleeve and link similar to that described in the above-mentioned patent.

On the gear-wheel is a disk 7t, adapted to engage with the disk 78, adapted to slide on but turn withthe shaft V. A weighted sleeve 7.; back of the disk is connected by a cord j to a weight K, this cord passing around a pul- 10o ley on the frame and a pulley on the weight,

and is secured to the rear of the carriage I in the same manner and for the same purpose as in the above-described patent.

Adapted to hearings on the frame is a longitudinal shaft L, having tappets 1, adapted to raise one side of the carriage and lift the pinion j out of engagement with the gearwheel. 'hen the twisting has reached a certain point, the shaft L is operated in time by the cam D on the shaft D striking a pivoted arm L, which is connected by a link L to an arm I on the shaft L, Fig.

S is a slide adapted to the bed A, and carries a pin .9, which rests between the two strands of the cord as it is twisted, as clearly described in the patent alluded to above. This slide, when it is forced forward by the twisting of the band, comes in contact with a trigger S, pivoted at s, and having a weighted toe .9 which rests in front of a projectiont on the shifting-bar T. As soon as the long arm of this lever is tripped it releases the shifting-bar from its control, and the weight T forces the belt-shifter from the fast to the loose pulley. The operator can return the belt to the fast pulley by simply turning the shaft T by its handle t, this shaft being connected to the belt-shifter by a strap \Vhen the second twist is finished-that is, the twist put in by the hook-spindle G the pin c on the cam D strikes the arm 11 of a lever U, this arm 11 being adjustably secured to said lever. The lever is pivoted at U to the shifting-bar T. Hence the opposite end of the bar is lifted and strikes the toe s releasing the bar T from the control of the toe. As soon as the bar is ieset the weight s, attached to the tee, is sufficient to force the toe to drop in position again.

Mounted on the rear of the machine are two brackets M and N. The bracket M carries a shaft M and a spindle M The shaft M has fast and loose pulleys m m, connected by a belt to a pulley 0 on the shaft (3.

On the shaft M is a pulley m and on the spindle is a pulley m The pulley m is a driven pulley, and passing over the two pulleys m m is a belt, which also passes around pulleys n n on spindles N N adj ustably secured on the slotted frame N by means of nuts adapted to screw-threads on the spindles, as shown in Fig. 2. The belt first passes around the pulley m then around the pulley n, then back around the pulley m", and finally around the pulley n, as shown in Fig. 1. Carried by this belt P is a threadguide 1), having a wing 19, which rests upon the threads as theyare wound around the spindle. The thread-guide is swiveled on the belt, as clearly shown in Fig. 4.

Q is a thread-guide through eyes on which the threads that make up the strand pass from the bobbins. Suitable tension devices may be applied, when necessary, to give an even tension to the threads as they are fed to the machine.

R is a post projecting upward from the bed and bent, as shown in Fig. 5, and has two bent pins or hooks r r. The yarn as it comes from the guide Q is first passed through the guide 19 on the belt, the end being secured to the pins 1' 1', after which the machine is set in motion, and as the belt is moved the yarn is first wound around the shaft M, then around the spindle N then back and around the spindle M and then again around the spindle N As the spindle N does not extend beyond the pulley, the loop consequently passes around the spindle N After the yarn has been sufiicien tly stranded the mechanism is stopped and the yarn broken, the two ends of the strand being twisted in the strand thus formed, which is moved on the spindles and placed upon hooks, the free end of the yarn being twisted around the pins 7' 'r ready for the stranding of a new strand.

I prefer to automatically stop the stranding apparatus and secure to the belt a projecting pin v, which strikes in succession the pins 1; 011 the disk V, mounted in a bearing on the frame of the machine. The disk has a projection e preferably forming a continuation of one of the pins, and GXlZOlldlllgdll the path of this projection 2: is an arm 0;" on a shaft Y, which carries at its opposite end an arm n, so that in the present instance after the fourth complete revolution of the belt I the projection o will strike the arm e and throw the arm 1: up in the direction ind cated by the arrow in Fig. 3, striking the shifting bar V, which is held in the position shown in Fig. 3 by a projection to, engaging with the frame of the machine; but as soon as the arm lifts the shifting-bar it frees its catch, and the weight w throws the belt from the fast to the loose pulley. This mechanism determines the number of lengths of yarn in the strand.

A guide 1 on the frame N, which extends around the pulley 11, tends to keep the threadguide in its proper position as it passes around the pulley.

The spindle on which the band is stranded may be increased to three or more without departing from my invention, the construction depending altogether on the band or rope to be formed.

It will be seen that by combining stranding mechanism with the twisting mechanism while the machine is twisting one band it is also stranding another, so that as soon as the twisted band is finished and removed from the machine the strand, as shown in Fig 7, can be removed from its spindles and placed upon the hooks, the process of twisting the band being similar to that described in the above-mentioned patent.

I claim as my invention 1. The combination of band-twisting mechanism with stranding mechanism so geared together in a machine that as the band is being twisted the yarn for the following band will at the same, time be stranded ready for application to the twisting mechanism, substantially as described.

2. The combination, in a stranding-machine, of the spindles on which the yarn is stranded, a stranding-belt, pulleys over which the belt passes, and a guide 011 said belt for the yarn, substantially as set forth.

3. The combination,in a stranding-machine, of the belt having a thread-guide and a fixed point to which one end of the thread is secured, with pulleys m m the pulley m being situated above the pulley m and pulleys n and n in a horizontal line, so arranged that the yarn to be stranded will form a single loop at one end and two independent loops at the opposite end, substantially as described.

4. The combination of the stranding-belt, its pulleys and thread-guide, a pin 1; on the belt, a disk having pins against which the said pin on the belt strikes a projection on the disk, a shaft having an arm in the path of the projection with a belt-shifter bar, and an arm on said shaft adapted to release the shifter-bar, substantially as described.

5. The combination of the belt and a threadguide on said belt, having a wing 19' adapted to rest upon the thread or yarn as it is being stranded to keep the guide in its proper position, substantially as described.

6. The combination of the driving-shaft, the sleeve having a worm thereon, the shaft D, a worm-Wheel thereon meshing with said worm, and a cam on said shaft D acting to lift the carriage and having pins 6 0, one pin acting to release the arm carrying the frictionwheel and the other pin acting to release the shifting-bar, substantially as described.

7. The combination of the driving-shaft, the cam-shaft geared thereto, a pin or projection carried thereby, a belt-shifting bar, a toe e11- gaging with a projection on said bar, and a trip-lever carried by the bar, adapted to be acted upon by the pin or projection on the camshaft and lift the toe, whereby the shiftingbar is released, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WVILLIAM H. NAYLOR.

Witnesses:

HENRY HoWsoN, HARRY SMITH. 

